Counting mechanism for liquid dispensing apparatus



Dec. 6, 193s. 2,139,216

GOUNTING MECHANISM FOR LIQUID DISPEVNSING APPARATUS H. WYDLER FiledSept. 8, 1936 4 SheeCS-Sheet l s 2. 8 a M. 4 I Il.; 5 W d8 ldgl: WM

. IIIIIIIIIIIlllllllllililllllllllm@ H. WYDLER Dec. 6, 938.

COUNTING MEGHANISM FOR LIQUID DISPENSING APPARATUS Filed Sept. 8, 1936 4Sheets-Sheet 2 {WZ-ef A H. WY'DLER Dec., 193s..

COUNTING MECHANISM F'OR LIQUID DISPENSING APPARATUS 4 sheets-sheet '3Filed Sept. 8, 1936 127' /fg l j?? l'zz vom/iol' @MZ j H. WYDLEF:`

Filed sept. a, 195s fiez COUNTING MECHANSM FOR LIQUID DISPENSINGAPPARATUS Dec. 6, 193s.

&5. 5%. E mf .Q R ma i Y ,ma n? MMM MH m 4i Il: m s w w i E Oom" m @N@wi Q n Nm Q n mw olf I I am. i* wn 4| lll I... l Mmmm '"Il. mi .Q r Nw1 mm O n wi a,

Patented Dec. 6, 1938 COUNTING MECHANISM FOR LIQUID DIS- PENSINGAPPARATUS Hermann Wydler, Berne, Switzerland, assignor to the firmSauser A.G., Soleure, Switzerland, a joint-stock company of SwitzerlandyApplication September 8, 1936, SerialNo. 99,893 In Switzerland September13, 1935 4 Claims.

The present invention relates to liquid dispensing .apparatus `and moreparticularly pertains to a counting mechanism for liquid dispensing ap-.paratus comprising a volumetric meter combined with a counter forsingle 'deliveries having a Zeroizing mechanism and a totalizingcounter. The invention consists in a device associated .with thecounting mechanism which is set in advance so as to limit the quantityof liquid to be delivered. The setting member is returned stepwiseduring the dispensing operationto the .zero position, and the dispensingapparatus becomes inoperative when the setting member is .returned byhand beyond the zero position.

Ihe various objects and features of the invention will be more apparentupon a consideration of the following detailed description and theaccompanying drawings wherein an exemplary embodiment of the inventionis disclosed.

. In the drawings:

Fig. 1 `is a sectional View through the casing showing the driving gearsdeveloped according to line I'-I of Fig. 8, Y VFig. 2 is a horizontalsectional View through the casing showing the mechanism with the nu-Vmeral wheels and supports removed, Fig. 3 is a vertical sectional viewtaken on line III-III of Fig. 9,

Fig. 4 is a front view of the apparatus in its inoperative position,Fig. 5 is a vertical sectional view taken on line V--V of Fig. 9, YFigs. 6 and 7 are detail views relating to the driving gear,

J Fig. 8 is a vertical sectional View taken on line VIII-VIII of Fig. 9,

Fig. 9 is a sectional view illustrating the assembly of the apparatusand Fig. 10 is a sectional view taken on line X-X of Fig. 9 showing theposition of the value operating parts when the setting pointer is atzero.

Y According to Figs. 1, and 8 a hub |02 is rotatably arranged on one ofthe studs 26 which eX- tend between and connect the plates 2| and 22 ofthe casing. A pinion |03, having a gap |06 in its periphery is attachedto the hub |02 and a cam |04 and a pinion |05 are also secured thereto.:The pinion |05 meshes with a pinion |01 fixed to a shaft |08 and apinion |06, keyed to the shaft |08, meshes with the gear teeth providedadjacent one end of `a shaft |10. This shaft is rotatably mounted in asupport ||2 and the plate 2| .and the opposite end is provided with gearteeth |I3 meshing with the gear teeth 4 arl, ranged on the inner edge ofa ring member 11 having .an annular member 16 rotatably arl rangedtherein. A handle ||5 serves for turning the ring 11 and acts as asetting index. The annular member 16 is provided with graduations H6 toindicate the quantity of liquid to be delivered and determined inadvance. Apin I1 extending from the annular member 16 serves as a stopfor the handle I5 to mark the inoperative position of the apparatus.

A shaft 29 is journalled in the plates 22 and 23 (Fig. l) and isconnected by means of the coupling members 28, 8 and a shaft 6 to thevolumetric meter which operates the single deliveries counter throughthe shaft 29. The shaft 20 carries a pinion 30 which meshes with apinion 3| attached to a shaft 32 and drives this shaft in a determinedratio of transmission. The shaft 32 carries a helical gear 4| which asshown in Fig. 9 drives the shaft 43 carrying a four tooth pinion 44 tooperate stepwise the numeral wheel 45 of a counter shown generally at I8for the single deliveries.

In Fig. 4 the zero numerals of three numeral drums .of the singledeliveries counter are visible in three openings 200 of the dial, whilethe totalizing counter 300 is shown in the lower part of the dial andvisible through an opening therein.

The shaft 32 also carries a pinion 32a meshing with a pinion ||8. Thepinion IIB is secured to a shaft H9 which carries a pinion |20 meshingwith the teeth of a gear wheel |2| rotatably arranged on a shaft |22.The gear wheel |2| has two rims of teeth, one complete rim of teeth onthe right side (Fig. 1) meshes with the pinion |20 and the other rim isprovided with only two teeth |23, |23 which mesh during each revolutionof the wheel |2| with the teeth of a pinion |24 to turn this pinion onlya part of a revolution. The pinion |24 is rotatably mounted on the shaft||9 and has on the right hand side (Fig. 2), where it meshes with theteeth |23 and |23', eight teeth (Fig. 6). The other rim of this pinionhas four teeth |24 (Fig. '1), so that a pinion |25 when it is turnedcannot mesh with' the pinion |24 when the latter is in the positionshown. When the pinion |24 however is rotated, it moves also the pinion|25, and a pinion |25a, integral therewith. The pinion |25a meshes withthe pinion |03. In order to maintain the pinion 12e when stationaryalways in the same position relative to the pinion |25 a pawl |26 ispressed by a spring |21 between the teeth of pinionr |24.

The cam disk |04 has a boss |28 which at the zero 4position lifts aroller |29 and thereby actuates a lever |30. The lever |30 is secured toa shaft |3| and the lever |30 is controlled by a spring |32 which tendsto press the roller |29 against the periphery of the cam disc |04.

The shaft I3I carries an arm |33 (Fig.3) against which is pressed aroller |34 arranged 0n an arm |35 of an angular lever 92 which ispivcted on a pin 9| and the other arm 93 of the angular lever 92 servesas a locking bar for an arm 83 of the spring controlled lever 86. Thelever 86 is secured to a shaft 82 and the lever arm 83 is urged towardsthe arm 93 by a spring 84.

The shaft 82 is coupled to a countershaft I2 shown in Figures 9 and 10.This shaft carries a locking pawl adapted to engage the periphery of adisk 1 which is xed to the meter shaft 6 and controls an arm |3 of avalve I4 for admitting liquid to the meter. In the zero position of thesetting index the boss |28 lifts the arm |30 (Fig. 5) and rotates theshaft |3I to swing the arm 93 and unlock the arm 83 (Fig. 3). The arm 83will then drop so far as will be permitted by an arm 1| which is securedto a shaft 68 and contacts by means of a roller 'I2 with an abutmenthaving a sloping surface 81.

The operating of the setting device is as follows: If it is desired towithdraw some liquid from the dispensing apparatus, the ring I1 isrotated until the setting index ||5 marks the desired number on theannular member '|6. Thereby the pinion |09 is rotated by means of thepinions I|3 and Thus the pinions |01 and |05, the cam disk |04 and thepinion |03 are rotated. The arrangement is such that the disk |04completes one revolution for one hundred measuring units. Likewise thepinion I25a has been rotated and with it the pinion |25.

The pinion |24 will not be rotated with the wheel |25 because, as isshown in Fig. 7, the pinion |24 is dimensioned for eight teeth but hasonly four teeth so as to leave gaps between the teeth and allow freepassage of the wheel |25.

When the dispensing apparatus delivers liquid, the shaft 29 rotates andthe pinion 30 turns the pinion 3| which rotates the shaft 32. The pinion32a secured to the shaft 32 rotates the pinion ||8 and with it thepinion |20. T'he pinion moves the pinion |2| which at each revolutionimparts to the pinion |24 by the teeth |23 and |23 a stepwise movement.At each step of the pinion |24 the pinions I 25 and |25a will be rotatedone tooth and the wheel |03 will be turned back stepwise. Together withthe wheel |03 also the cam |04, wheel |05, wheels |01 and |09, pinion||0 and the setting ring 11 will be returned.

As soon as the ring returns to zero the boss |28 of cam |04 will engagethe roller |29 and lift it to thus rotate the shaft |3I. By this rotation the arm |33 will be moved to actuate the lever 35 by means of theroller |34 and rotate the shaft 9| (Figs. 7 and 3). Thereby the arm 93moves out of reach of the lever 83 whereupon the spring 84 rotates theshaft 82. Then the arm |I (Fig. 10) secured to the shaft I2 will dropinto the recess I0 of the disc 1 and valve I4 will be closed.

If it is desired to cut out the setting device the index ||5 may bemoved to pass the zero point in a counterclockwise direction until it isstopped bythe pin II`I. By doing so the gear wheel |03 will have rotateduntil the gap |06 causes the gear teeth of the wheels |03 and |250, tobe disengaged. Then the shafts |22, I|9 and 32 which establish theconnection with the meter may rotate independently of the settingdevice.

By moving the index I5 beyond the Zero mark the boss |28 of the disk |04moves out of engagement with the roller |29, and the lever |30 dropsupon the rim of the smaller diameter of the disk |04 and the spring |32rotates the shaft I3| which will Withdraw the arm |33 from the roller|34 and release the lever |35 and the arm 93.

Since the arm 93 is spring controlled as shown in Fig. 3 it moves assoon as the shaft 82 rotates again and holds the arm 83 and the roller85 out of engagement with the cam 80 fixed to the shaft 29 by means of asleeve 8|. Thus the delivery position of the apparatus is restoredagain.

The shaft 82 is coupled to the countershaft I2 which operates the pawlassociated with the stop cam disk 'l on the shaft 6 to stop thevolumetric meter at the zero position of the single deliveries counter,by actuation of the arm I3 to close the admission valve I4.

If it is desired to withdraw a new supply of measured liquid from theapparatus then the index 5 is again moved to the zero position wherebythe wheel |03 will be rotated so far as to be engaged again by thepinion |a and the setting device can again be operated by the meter ashereinabove described.

What I claim as new is:

1. In liquid dispensing apparatus, an annular member having graduationsthereon indicating units of liquid to be dispensed, a ring memberrotatably mounted with respect to said annular member and having gearteeth along the circumference thereof, an index carried by said ringmember, a pinion meshing with the gear teeth of said ring member, adisc` having a boss thereon adapted to be rotated upon rotation of thepinion and the ring member to a position corresponding to the units ofliquid to be dispensed, a shaft adapted to be rotated when liquid isdispensed, gear means interposed between said disc and said shaft forrotating the disc and the ring member in a reverse direction, and saidboss being adapted to engage means for stopping the rotation of theshaft.

2. In liquid dispensing apparatus, an annular member having graduationsthereon indicating units of liquid to be dispensed, a ring memberrotatably mounted with respect to said annular member and having gearteeth along the circumference thereof, an index carried by said ringmember, a pinion meshing with the gear teeth of said ring member, ashaft adapted to be rotated when liquid is dispensed by the apparatus, adisc having means associated therewith for stopping the rotation of saidshaft, said disc being geared to be rotated to a given position duringmovement of the index from the zero position on the annular member, anddriving means interposed between said shaft and said disc for returningthe index and the disc to the zero position.

3. In liquid dispensing apparatus, an annular member having graduationsthereon indicating units of liquid to be dispensed, a ring memberrotatably mounted with respect to said annular member and having gearteeth along the circumference thereof, an index carried by said ringmember, a pinion meshing with the gear teeth of said ring member, ashaft adapted to be rotated when liquid is dispensed by the apparatus, adisc having means associated therewith for stopping the rotation of saidshaft, said disc being geared to be rotated to a given position duringmovement of the index from the zero position on the annular member, anda non-reversible transmission mechanism interposed between said shaft`and said disc for returning the index and the disc to the zeroposition.

4. In liquid dispensing apparatus, an annular member having graduationsthereon indicating units of liquid to be dispensed, a ring memberrotatably mounted with respect to said annular member and having geartee-th along the circumference thereof, an index carried by said ringmember, a pinion meshing with the gear teeth of said ring member, ashaft adapted to be rotated When liquid is dispensed by the apparatus, adise having means associated therewith for stopping the rotation of saidshaft, said disc being geared to be rotated to a given position duringmovement of the index fromv the zero position on the annular member,driving means interposed between said shaft and said dise for returningthe index and the disc to the zsero position, and said driving meansincluding a gear adapted to be turned during the rotation of said disc,said gear wheel having a gap therein adapted to disconnect the drivingmeans when the index is moved to a predetermined position.

HERMANN WYDLER.

